Chivo, which now counts more than 4 million users, is a wallet that supports both Bitcoin and US dollars. Also, the companies involved in the initial stages of the project have said little — or in some cases, nothing — about the specific problems that many Chivo users have reported. Now, El Salvador has added two more companies to the roster: New York-based software company AlphaPoint and Los Angeles-based digital identity provider Netki. Previously, a firm called Athena Bitcoin, known for its Bitcoin ATMs, confirmed it was responsible for developing Chivo. “The Chivo app was developed by Athena,” CEO Eric Gravengaard told The Block in November, without giving many more details.